Generate OPENCL_ICD_LOADER_OCL_VERSION_STRING from CL_TARGET_OPENCL_VERSION.

Author: Kerilk

CMakeLists.txt

@@ -139,7 +139,6 @@ endif ()
 target_compile_definitions (OpenCL
   PRIVATE
     CL_TARGET_OPENCL_VERSION=300
-    OPENCL_ICD_LOADER_OCL_VERSION_STRING="OpenCL 3.0"
     OPENCL_ICD_LOADER_VERSION_MAJOR=3
     OPENCL_ICD_LOADER_VERSION_MINOR=0
     OPENCL_ICD_LOADER_VERSION_REV=4

loader/icd_version.h

@@ -18,6 +18,8 @@
 
 #ifndef _ICD_VERSION_H_
 #define _ICD_VERSION_H_
+// ensure CL_TARGET_OPENCL_VERSION is valid
+#include <CL/opencl.h>
 
 #define OPENCL_ICD_LOADER_VAL(_v) #_v
 #define OPENCL_ICD_LOADER_TOSTRING(_d) OPENCL_ICD_LOADER_VAL(_d)
@@ -26,4 +28,29 @@
     OPENCL_ICD_LOADER_TOSTRING(OPENCL_ICD_LOADER_VERSION_MINOR) "." \
     OPENCL_ICD_LOADER_TOSTRING(OPENCL_ICD_LOADER_VERSION_REV)
 
+#if CL_TARGET_OPENCL_VERSION == 100
+#define OPENCL_ICD_LOADER_OCL_VERSION_NUMBER "1.0"
+#endif
+#if CL_TARGET_OPENCL_VERSION == 110
+#define OPENCL_ICD_LOADER_OCL_VERSION_NUMBER "1.1"
+#endif
+#if CL_TARGET_OPENCL_VERSION == 120
+#define OPENCL_ICD_LOADER_OCL_VERSION_NUMBER "1.2"
+#endif
+#if CL_TARGET_OPENCL_VERSION == 200
+#define OPENCL_ICD_LOADER_OCL_VERSION_NUMBER "2.0"
+#endif
+#if CL_TARGET_OPENCL_VERSION == 210
+#define OPENCL_ICD_LOADER_OCL_VERSION_NUMBER "2.1"
+#endif
+#if CL_TARGET_OPENCL_VERSION == 220
+#define OPENCL_ICD_LOADER_OCL_VERSION_NUMBER "2.2"
+#endif
+#if CL_TARGET_OPENCL_VERSION == 300
+#define OPENCL_ICD_LOADER_OCL_VERSION_NUMBER "3.0"
+#endif
+
+#define OPENCL_ICD_LOADER_OCL_VERSION_STRING \
+    "OpenCL " OPENCL_ICD_LOADER_OCL_VERSION_NUMBER
+
 #endif